• Children under 1 year of age

Etiology: AD or sporadic form – osseous growth spurt during development.

Common sites:

• Mandible
• Clavicle
• Scapula
• Frontal bone
• Ulna

Radiology: Mandibular enlargement, cortical redundancy

Lab:

• Anemia
• Leukocytosis
• ↑ ESR
• ↑Serum alkaline phosphatase.
• Monocytosis

Management: Symptomatic

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